CN103207219B - Electrochemical test piece - Google Patents
Electrochemical test piece Download PDFInfo
- Publication number
- CN103207219B CN103207219B CN201210108825.6A CN201210108825A CN103207219B CN 103207219 B CN103207219 B CN 103207219B CN 201210108825 A CN201210108825 A CN 201210108825A CN 103207219 B CN103207219 B CN 103207219B
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- CN
- China
- Prior art keywords
- aforementioned
- electrode
- test piece
- bend
- connects
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
- G01N27/3274—Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration
Abstract
A kind of electrochemical test piece, comprises a substrate, an electrode structure and an insulating trip.Former electrodes structure is formed on aforesaid base plate, and former electrodes structure comprises: a working electrode and an auxiliary electrode.Aforementioned auxiliary electrode has a first end, a second end, an extension and a bend, aforementioned extension connects aforementioned first ends portion and aforementioned bend, bend connects aforementioned the second end, define a spatial accommodation between extension and aforementioned operation electrode, and crooked position is in spatial accommodation.Aforementioned dielectric sheet to be arranged on substrate and to form an injection port, and a sample fluid enters electrochemical test piece via aforementioned injection port, and sequentially contacts aforementioned operation electrode and aforementioned auxiliary electrode.
Description
Technical field
A kind of electrochemical test piece, particularly has about a kind of the electrochemical test piece detected less than function.
Background technology
Refer to Fig. 1, one known electric chemistry test piece has an identification electrode group D, this electrode group comprises two identification electrodes, the original not conducting mutually of these two identification electrodes, inject test piece when sample fluid and prolong a sample introduction direction A and can arrive at this identification electrode group D after a reaction electrode group E, whether now identification electrode group D can form a conductive loops because of sample fluid, make to electrically conduct with instrument end to fill up with this sample fluid of identification or less than (underfill).
Design due to known identification electrode group means that rear end need increase at least two electrode foot positions, and this measure will reduce the useful number of electrode foot position, will cause harmful effect for following test piece towards multi-functional expansion design.
Summary of the invention
The invention provides a kind of electrochemical test piece, comprise a substrate, an electrode structure and an insulating trip.Aforesaid base plate has a test side.Former electrodes structure is formed on aforesaid base plate, and former electrodes structure comprises: a working electrode and an auxiliary electrode.Aforementioned auxiliary electrode has a first end, a second end, an extension and a bend, aforementioned extension connects aforementioned first ends portion and aforementioned bend, aforementioned bend connects aforementioned the second end, define a spatial accommodation between aforementioned extension and aforementioned operation electrode, and aforementioned crooked position is in aforementioned spatial accommodation.Aforementioned dielectric sheet to be arranged on aforesaid base plate and to form an injection port at correspondence aforementioned test side place, and a sample fluid enters this electrochemical test piece via aforementioned injection port and sequentially contacts aforementioned operation electrode and aforementioned auxiliary electrode.
In an embodiment, aforementioned bend comprises a first paragraph, a second segment and a linkage section, aforementioned first paragraph connects aforementioned extension and aforementioned linkage section, second previous paragraph connects aforementioned the second end and aforementioned linkage section, and first, second section aforementioned and aforementioned linkage section form one " ㄇ " font structure.
In an embodiment, aforementioned " ㄇ " font structure has multiple convex section, and aforementioned multiple convex section connects second previous paragraph and extends towards aforementioned test side.
In an embodiment, aforementioned bend comprises a first paragraph, a second segment and a linkage section, aforementioned first paragraph connects aforementioned extension and aforementioned linkage section, and second previous paragraph connects aforementioned the second end and aforementioned linkage section, and wherein aforementioned linkage section forms one " ㄇ " font structure.
In an embodiment, aforementioned bend comprises a first paragraph, a second segment and a linkage section, aforementioned first paragraph connects aforementioned extension and aforementioned linkage section, and second previous paragraph connects aforementioned the second end and aforementioned linkage section, and aforementioned linkage section forms " ㄇ " font structure of a hollow.
In an embodiment, aforementioned bend comprises a first paragraph, a second segment and a linkage section, aforementioned first paragraph connects aforementioned first ends portion and aforementioned linkage section, and second previous paragraph connects aforementioned the second end and aforementioned linkage section, and aforementioned linkage section forms a pectination.
In an embodiment, former electrodes structure is that metal material is made.
In an embodiment, former electrodes structure has non-metallic material.
In an embodiment, former electrodes structure has carbon material.
In an embodiment, aforementioned electrochemical test piece more comprises a metal material layer, and aforementioned metal material layer is arranged between former electrodes structure and aforementioned dielectric substrate.
In an embodiment, aforementioned metal material layer has gold, silver, palladium, platinum, nickel, copper, molybdenum, cobalt, chromium, zinc, tin, lead or titanium material.
Accompanying drawing explanation
Fig. 1 represents the known electric chemistry identification electrode of test piece and the schematic diagram of reaction electrode;
Fig. 2 is the exploded view of the electrochemical test piece representing one embodiment of the invention;
Fig. 3 a represents substrate in the electrochemical test piece of one embodiment of the invention and the schematic diagram of electrode structure;
Fig. 3 b be represent another embodiment of the present invention electrochemical test piece in substrate and electrode structure schematic diagram;
Fig. 3 c be represent another embodiment of the present invention electrochemical test piece in substrate and electrode structure schematic diagram;
Fig. 3 d be represent another embodiment of the present invention electrochemical test piece in substrate and electrode structure schematic diagram;
Fig. 3 e be represent another embodiment of the present invention electrochemical test piece in substrate and electrode structure schematic diagram;
Fig. 4 represents substrate in the electrochemical test piece of another embodiment of the present invention and the partial schematic diagram of electrode structure;
Fig. 5 a is the schematic diagram in the electrochemical test piece sample introduction direction representing another embodiment of the present invention;
Fig. 5 b is the schematic diagram in the electrochemical test piece sample introduction direction representing another embodiment of the present invention; And
Fig. 6 be represent one embodiment of the invention electrochemical test piece in detect less than time curent change schematic diagram.
Wherein, description of reference numerals is as follows:
Sample introduction direction A
Sample introduction direction B
Pectination C
Identification electrode group D
Reaction electrode group E
Background current Ia
Sum total current Ib
Substrate 110
Electrode structure 120
First end 123
The second end 125
Working electrode 129
Auxiliary electrode 130
Extension 131
First paragraph 132
Linkage section 133
Second segment 134
Convex section 135
Spatial accommodation 136
Bend 137
Insulating trip 140
Injection port 141
Reaction zone 142
Test side 143
Electricity connection end 144
Embodiment
First Fig. 2 is referred to, the electrochemical test piece of one embodiment of the invention consists predominantly of substrate 110, electrode structure 120 and an insulating trip 140, electrode structure 120 is formed on substrate 110, substrate 110 has test side 143 and an electricity connection end 144, insulating trip 140 is covered on electrode structure 120, and being formed with an injection port 141 at counterpart substrate 110 test side 143 place, the place of the non-coated electrode structure 120 of insulating trip 140 is defined as reaction zone 142.Specifically be, electrode structure 120 can comprise non-metallic material, such as carbon, or also can comprise nonmetallic materials and metal material, wherein metal material such as gold, silver, palladium, platinum, nickel, copper, molybdenum, cobalt, chromium, zinc, tin, lead or titanium, or also can be entirely metal material is made.
Then please with reference to Fig. 2 and Fig. 3 a, electrode structure 120 comprises working electrode 129 and an auxiliary electrode 130.Auxiliary electrode 130 includes extension 131, bend 137, first end 123 and a second end 125, extension 131 connects first end 123 and bend 137, bend 137 is connected with the second end 125, wherein first end 123 and the second end 125 are positioned at the electricity connection end 144 of substrate 110, and export a detection signal by first end 123 and the second end 125.As shown in Figure 3 a, working electrode 129 is such as extensible is provided with a kink (with reference to figure 3a bottom), and between extension 131 and working electrode 129, definable goes out a spatial accommodation 136, and bend 137 is positioned in the middle of spatial accommodation 136.
As can be seen from Fig. 3 a, bend 137 includes first paragraph 132, linkage section 133 and a second segment 134, and first paragraph 132 connects extension 131 and linkage section 133, and second segment 134 connects the second end 125 and linkage section 133.First paragraph 132, second segment 134 form one " ㄇ " font structure with linkage section 133, wherein should have an opening by " ㄇ " font structure, and this opening are towards extension 131.What deserves to be explained is, the opening of aforementioned " ㄇ " font structure, also visual demand and having towards the design of test side 143.
Step less than detecting then is described, during detection, the first end 123 of auxiliary electrode 130 and the second end 125 are applied in a faint potential difference (PD), sample fluid (such as blood) can enter reaction zone 142 from injection port 141, and along sample introduction direction B sequentially through working electrode 129, first paragraph 132 and second segment 134.Refer to Fig. 6, Fig. 6 is the result of carrying out cyclic voltammetry scan (Cyclic Voltammetry) for first end 123 and the second end 125, when in reaction zone 142 during no specimen fluid, now the current value that measures be a background current Ia.When sample fluid is not filled up, sample fluid only can cover working electrode 129 and first paragraph 132, therefore the current value that measures be similarly background current Ia; When sample fluid is covered to second segment 134, first paragraph 132 and second segment 134 form a current path by sample fluid, therefore sample fluid generation electrochemical reaction, now carry out cyclic voltammetry scan, namely produce a redox current, the current value that measures be the sum total current Ib of background current and redox current.Whether the present invention can be full of reaction zone 142 by the change of measured current with judgement sample fluid, can avoid by this measuring when sample fluid is not filled up, and causes measurement inaccurate.
Then please with reference to Fig. 3 b to 3e, the present invention still can design to increase impedance by different bends 137, increase the potential difference (PD) between first paragraph 132 and second segment 134 by this, namely, chemical driving force between first paragraph 132 and second segment 134 is stronger, therefore the redox current that increase general performance goes out, and then the identification less than detecting can be increased.Fig. 3 b is another embodiment of the present invention, wherein change shape to obtain different impedance by by the linkage section 133 of bend 137, as shown in Figure 3 b, linkage section 133 connects first paragraph 132 and second segment 134, and linkage section 133 is formed one " ㄇ " font structure, be wherein somebody's turn to do the opening of " ㄇ " font structure towards test side 143.What deserves to be explained is, the opening of aforementioned " ㄇ " font structure, visual demand and having towards the design of extension 131.
Referring again to Fig. 3 c, the linkage section 133 of another embodiment of the present invention connects first paragraph 132 and second segment 134, and its middle connecting segment 133 is " ㄇ " font structure of formation one hollow, and the opening of this " ㄇ " font structure is towards test side 143.What deserves to be explained is, aforementioned " ㄇ " " opening of font structure, visual demand and having towards the design of extension 131.
Refer to Fig. 3 d, the linkage section 133 of another embodiment of the present invention connects first paragraph 132 and second segment 134, and its middle connecting segment 133 forms a pectination C, and an opening of this pectination C is towards extension 131.What deserves to be explained is, the opening of aforementioned pectination C, visual demand and having towards the design of test side 143.
In this embodiment, the comb shape of pectination C is right angle, but also can adopt the design of fillet, wedge angle or other shapes.In addition, the circuit of pectination C can show by various different width, and such as line width is between 0.1-1mm.But the line width on pectination C might not be same width, circuit also can be made to have various width, represent the change as density.The line pitch of pectination C also can show by various different width, such as line pitch is between 0.1-1mm, but, between the line pitch of pectination C might not be same width, also the spacing between circuit can be made to have different width performances, represent the change as density.Specifically this pectination C can use various different production technology and obtain, such as wire mark, laser engraving, sputter, electroless plating etc. but be not limited to this.
But the present invention also can adopt various different convex section form to fill up situation to detect, and can reduce the probability of erroneous judgement by this.Refer to Fig. 3 e, the linkage section 133 of another embodiment of the present invention connects first paragraph 132 and second segment 134, wherein first paragraph 132, second segment 134 form one " ㄇ " font structure with linkage section 133, aforementioned bend 137 more comprises at least one convex section 135, and this convex section 135 connects second segment 134 and extends towards test side 143.
Specifically the shape of convex section 135 is not limited to shown in Fig. 3 e, and can be integrated in the middle of each embodiment above-mentioned.As shown in Figure 4, convex section 135 also can be connected with the pectination C in Fig. 3 d, and extends towards test side 143.What deserves to be explained is, the opening of aforementioned pectination C, also visual demand and having towards the design of test side 143.
In addition, injection port 142 and sample introduction direction B not necessarily will perpendicular to test sides 143, and as shown in Figure 5 a, sample fluid also inwardly can enter in the middle of test piece from side, or as shown in Figure 5 b, sample fluid also can enter in the middle of test piece along a vergence direction.
In an embodiment, aforementioned electrochemical test piece more can comprise a metal material layer, this metal material layer is arranged between substrate 110 and electrode structure 120, and this metal material layer can comprise made by gold, silver, palladium, platinum, nickel, copper, molybdenum, cobalt, chromium, zinc, tin, lead or titanium.
In sum, the bend that electrochemical test piece of the present invention mainly adds in auxiliary electrode designs to increase impedance.Owing to not needing to use different electrode materials in electrochemical test piece manufacturing process of the present invention, and electrode structure can complete by identical material, therefore significantly can reduce material cost.
Although the present invention is with aforesaid embodiment openly as above, so itself and be not used to limit the present invention.The technical field of the invention technician, without departing from the spirit and scope of the present invention, when doing a little change and retouching.Therefore protection scope of the present invention is when being as the criterion depending on the accompanying application claims person of defining.
Claims (7)
1. an electrochemical test piece, comprises:
One substrate, has a test side;
One electrode structure, be formed on this substrate, this electrode structure is made up of a working electrode and an auxiliary electrode, this auxiliary electrode, have a first end, a second end, an extension and a bend, this extension connects this first end and this bend, and this bend connects this second end, define a spatial accommodation between this extension and this working electrode, and this crooked position is in this spatial accommodation; And
One insulating trip, is arranged on this substrate and to forming an injection port in test side place, a sample fluid enters this electrochemical test piece via this injection port and sequentially contacts this working electrode and this auxiliary electrode;
Wherein this bend comprises a first paragraph, a second segment and a linkage section, this first paragraph connects this extension and this linkage section, this second segment connects this second end and this linkage section, and this first, second section and this linkage section form one " ㄇ " font structure, this bend more comprises a convex section, and this convex section connects this second segment and extends towards this test side.
2. an electrochemical test piece, comprises:
One substrate, has a test side;
One electrode structure, be formed on this substrate, this electrode structure is made up of a working electrode and an auxiliary electrode, this auxiliary electrode, have a first end, a second end, an extension and a bend, this extension connects this first end and this bend, and this bend connects this second end, define a spatial accommodation between this extension and this working electrode, and this crooked position is in this spatial accommodation; And
One insulating trip, is arranged on this substrate and to forming an injection port in test side place, a sample fluid enters this electrochemical test piece via this injection port and sequentially contacts this working electrode and this auxiliary electrode;
Wherein this bend comprises a first paragraph, a second segment and a linkage section, and this first paragraph connects this first end and this linkage section, and this second segment connects this second end and this linkage section, and this linkage section forms a pectination.
3. electrochemical test piece as claimed in claim 1 or 2, wherein this electrode structure is that metal material is made.
4. electrochemical test piece as claimed in claim 1 or 2, wherein this electrode structure has non-metallic material.
5. Electrochemical Detection examination as claimed in claim 4, wherein this electrode structure has carbon material.
6. electrochemical test piece as claimed in claim 1 or 2, wherein this electrochemical test piece more comprises a metal material layer, and this metal material layer is arranged between this electrode structure and this substrate.
7. electrochemical test piece as claimed in claim 6, wherein this metal material layer has gold, silver, palladium, platinum, nickel, copper, molybdenum, cobalt, chromium, zinc, tin, lead or titanium material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261586907P | 2012-01-16 | 2012-01-16 | |
| US61/586,907 | 2012-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103207219A CN103207219A (en) | 2013-07-17 |
| CN103207219B true CN103207219B (en) | 2015-10-21 |
Family
ID=48754506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210108825.6A Expired - Fee Related CN103207219B (en) | 2012-01-16 | 2012-04-13 | Electrochemical test piece |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8852423B2 (en) |
| CN (1) | CN103207219B (en) |
| TW (1) | TWI468681B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197522B2 (en) | 2015-03-18 | 2019-02-05 | Materion Corporation | Multilayer constructs for metabolite strips providing inert surface and mechanical advantage |
| US10378098B2 (en) | 2015-03-18 | 2019-08-13 | Materion Corporation | Methods for optimized production of multilayer metal/transparent conducting oxide (TCO) constructs |
| EP3088880A1 (en) | 2015-04-28 | 2016-11-02 | Industrial Technology Research Institute | Methods for measuring analyte concentration |
| CN106546642B (en) * | 2015-09-23 | 2019-01-08 | 达尔生技股份有限公司 | The detection method and detection device of electrochemical sensing test piece |
| TWI580966B (en) * | 2015-12-09 | 2017-05-01 | 博通生技股份有限公司 | System for activating glucometers |
| CN110412099B (en) | 2018-04-30 | 2022-05-13 | 财团法人工业技术研究院 | Biosensor and bioassay method |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5650062A (en) * | 1995-03-17 | 1997-07-22 | Matsushita Electric Industrial Co., Ltd. | Biosensor, and a method and a device for quantifying a substrate in a sample liquid using the same |
| TWI239397B (en) * | 2002-11-14 | 2005-09-11 | Gen Life Biotechnology Co Ltd | Electro-chemical electrode sensing test sheet for screen printing and its manufacturing method |
| KR100554649B1 (en) | 2003-06-09 | 2006-02-24 | 주식회사 아이센스 | Electrochemical biosensor |
| US7357851B2 (en) * | 2003-09-30 | 2008-04-15 | Abbott Laboratories | Electrochemical cell |
| US7138041B2 (en) * | 2004-02-23 | 2006-11-21 | General Life Biotechnology Co., Ltd. | Electrochemical biosensor by screen printing and method of fabricating same |
| US7695600B2 (en) | 2005-06-03 | 2010-04-13 | Hypoguard Limited | Test system |
| TWM287818U (en) | 2005-09-16 | 2006-02-21 | Far East College | Micro-channel apparatus with cross electrodes structure |
| TWI335428B (en) * | 2005-12-23 | 2011-01-01 | Apex Biotechnology Corp | Electrochemical test strip |
| CN100567973C (en) * | 2005-12-30 | 2009-12-09 | 五鼎生物技术股份有限公司 | Electrochemistry test paper |
| US8409424B2 (en) * | 2006-12-19 | 2013-04-02 | Apex Biotechnology Corp. | Electrochemical test strip, electrochemical test system, and measurement method using the same |
| US8080153B2 (en) * | 2007-05-31 | 2011-12-20 | Abbott Diabetes Care Inc. | Analyte determination methods and devices |
| TW201102647A (en) | 2009-07-02 | 2011-01-16 | Wei-Ming Sung | Electrochemical biosensor test strip |
| WO2011005764A1 (en) * | 2009-07-06 | 2011-01-13 | Ada Technologies, Inc. | Electrochemical device and method for long-term measurement of hypohalites |
| TWI440853B (en) | 2009-12-14 | 2014-06-11 | Taidoc Technology Corp | Electrochemical biosensing test strip, biosensing meter, system and measuring method for analyte measurement incorporating a hematocrit correction |
| TWI385385B (en) | 2010-02-24 | 2013-02-11 | Pensiero Medical Electronics Corp | Bio-sensing device capable of detecting sensing code and short fill |
| TW201142285A (en) | 2010-05-28 | 2011-12-01 | Hmd Biomedical Inc | Biosensing test strip structure with microchannel |
-
2012
- 2012-04-13 TW TW101113097A patent/TWI468681B/en not_active IP Right Cessation
- 2012-04-13 CN CN201210108825.6A patent/CN103207219B/en not_active Expired - Fee Related
-
2013
- 2013-01-11 US US13/739,801 patent/US8852423B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US8852423B2 (en) | 2014-10-07 |
| US20130180869A1 (en) | 2013-07-18 |
| CN103207219A (en) | 2013-07-17 |
| TWI468681B (en) | 2015-01-11 |
| TW201331576A (en) | 2013-08-01 |
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